ICP DAS USA PCIe-LM4 User manual

PCIe-LM4 User Manual
24-Bit Precision Load Cell Input Board Version 1.0, Jan. 2020
SUPPORT
This manual relates to the following boards: PCIe-LM4.
WARRANTY
All products manufactured by ICP DAS are warranted against defective materials
for a period of one year from the date of delivery to the original purchaser.
WARNING
ICP DAS assumes no liability for damages consequent to the use of this product.
ICP DAS reserves the right to change this manual at any time without notice. The
information furnished by ICP DAS is believed to be accurate and reliable. However,
no responsibility is assumed by ICP DAS for its use, nor for any infringements of
patents or other rights of third parties resulting from its use.
COPYRIGHT
Copyright © 2020 by ICP DAS. All rights are reserved.
TRADEMARKS
Names are used for identification purposes only and may be registered
trademarks of their respective companies.
CONTACT US
If you have any questions, feel to contact us by email at:
[email protected] or [email protected]
We will respond to you within 2 working days.

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TABLE OF CONTENTS
PACKING LIST ................................................................................................................................................................ 4
1. INTRODUCTION ................................................................................................................................................. 5
1.1 FEATURES.............................................................................................................................................................. 6
1.3 SPECIFICATIONS ...................................................................................................................................................... 7
1.4 APPLICATIONS ...................................................................................................................................................... 10
2HARDWARE CONFIGURATION...........................................................................................................................11
2.1 BOARD LAYOUT .................................................................................................................................................... 11
2.2 CARD ID SWITCH (SW1) ....................................................................................................................................... 12
2.3 SYSTEM BLOCK DIAGRAM....................................................................................................................................... 13
2.4 ANALOG INPUT .................................................................................................................................................... 14
2.4.1 Analog Input Range..................................................................................................................................... 14
2.4.2 Connecting Analog Input Signals ................................................................................................................ 15
2.4.3 Signal Shielding ........................................................................................................................................... 15
2.4.4 Connecting Load cell inputs Signals ............................................................................................................ 16
2.4.5 Analog Input Data Acquisition Methods ..................................................................................................... 16
2.5 ANALOG OUTPUT ................................................................................................................................................. 17
2.5.1 Connection Analog Output Signals.............................................................................................................. 17
2.6 DIGITAL INPUT/OUTPUT......................................................................................................................................... 18
2.7 MOTION CONTROL................................................................................................................................................ 19
2.7.1 Connecting Pulse Output Signals................................................................................................................. 19
2.7.2 Connecting Encoder Input Signals............................................................................................................... 21
2.8 PIN ASSIGNMENTS ................................................................................................................................................ 23
2.8.1 CON1/2 Connector of the PCIe-LM4 ............................................................................................................ 23
2.8.2 I/O Connector Signal Descriptions............................................................................................................... 24
2.8.3 Power Source............................................................................................................................................... 25
3HARDWARE INSTALLATION ...............................................................................................................................26
4SOFTWARE INSTALLATION ................................................................................................................................30
4.1 OBTAINING/INSTALLING THE DRIVER INSTALLER PACKAGE ......................................................................................... 30
4.2 PLUG AND PLAY DRIVER IN STA L L ATI ON ...................................................................................................................... 32
4.3 VERIFYING THE INSTALLATION .................................................................................................................................. 34
4.3.1 Accessing Windows Device Manager.......................................................................................................... 34
4.3.2 Check the Installation.................................................................................................................................. 37

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5CALIBRAT ION ....................................................................................................................................................38
5.1 INTRODUCTION..................................................................................................................................................... 38
5.2 STEP-BY-STEP CALIBRATION PROCESS........................................................................................................................ 39
5.2.1 PCIe-LM4 Calibration Step........................................................................................................................... 39
6WINDOWS API FUNCTION ................................................................................................................................51
APPENDIX A: DAUGHTER BOARDS ...............................................................................................................................52
DN-68A........................................................................................................................................................................... 52
APPENDIX B: REVISION HISTORY..................................................................................................................................53

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Packing List
The shipping package should contain the following items:
One multifunction board:
PCIe-LM4
One printed Quick Start Guide
Note:
If any of these items is missing or damaged, contact the dealer from whom you purchased the product.
Save the shipping materials and carton in case you need to ship or store the product in the future.

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1. Introduction
The PCIe-LM4 is a powerful multifunction board based on the PCI Express. Equipped with four
strain gauge input channels, four general analog input channels, a 2-axis motion controller, two
analog output channels, sixteen isolated digital input channels and sixteen isolated digital output
channels.
The PCIe-LM4 also adds a Card ID switch. Users can set Card ID on a board and recognize the
board by the ID via software when using two or more PCIe-LM4 cards in one computer.
These cards support various OS versions, such a Windows 32/64-bit Windows 7/8/10. DLL
together with various language sample programs based on Visual C++, Borland Delphi, Borland C++
Builder, Visual Basic, C#.NET, Visual Basic.NET and LabVIEW are provided in order to help users
quickly and easily develop their own applications.

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1.1 Features
The following is an overview of the general features provided by the PCIe-LM4 board. Refer to
Section 1.3 for more details.
Interface
•PCI Express x1
•Card ID switch
•Software Calibration
Analog Input
•24-bit AD converter, with up to 15 kHz sampling rate for each channel
•4-channel differential General Analog Inputs
•4-channel Load Cell Transducer Inputs
Analog Output
•2-channel 16-bit voltage output
•Voltage output range: +/-10 V, +/-5 V, 0 ~ +10 V, 0 ~ +5 V
Motion Control
•2-asiex Encoder Inputs
•2-asiex Pulse Outputs
Digital I/O
•16-channel Digital Inputs
•16-channel Digital Outputs
•2500 VDC Isolation

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1.3 Specifications
The following is an overview of the specifications for the various models in the PCIe-LM4 Series.
Model PCIe-LM4
Load Cell Transducer
Channels 4
A/D Converter 24-bit, 67 µs conversion time
Sampling Rate 15 kS/s
Over voltage Protection Continuous +/-35 Vp-p
Input Impedance 10,000 MΩ/4pF
Trigger Modes Software
Data Transfer Polling
Accuracy 0.05 % of FSR ±1 LSB @ 25 °C, ± 10 V
Input Range ±227 mV (For Load Cell Transducer)
Analog Input
Channels 4 differential
A/D Converter 24-bit, 67 µs conversion time
Sampling Rate 15 kS/s
Over voltage Protection Continuous +/-35 Vp-p
Input Impedance 10,000 MΩ/4pF
Trigger Modes Software
Data Transfer Polling
Accuracy 0.05 % of FSR ±1 LSB @ 25 °C, ± 10 V
Input Range ±10 V, ±5 V, ±2.5 V, ±1.25 V
Analog Output
Channels 2
Resolution 16-bit
Accuracy ± 10 LSB
Output Range ±5 V, ±10 V
Output Driving ± 5 mA
Slew Rate 2.8 V/µs
Output Impedance 0.1 Ω (Max.)
Operating Mode Static update, Waveform generation
Output Rate 500 KS/s (Max.)

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FIFO Size 512 Samples
Digital Input
Channels 16
Isolation Voltage 2500 VDC
Compatibility Sink or Source, Photo coupler isolated channel with common power or ground
Input Voltage Logic 0: 0 ~1 V/Logic 1: 5~24 V
Response Speed 4 kHz (Typical)
Trigger Mode Software
Data Transfer Polling
Digital Output
Channels 16
Isolation Voltage 2500 VDC
Compatibility Sink, Open Drain
Output Capability 100 mA/+ 30V for each channel @100% duty
DO Readback N/A
Operation Mode Static update
Response Speed 4 kHz (Typical)
Encoder Input
Channels 2
Mode CW/CCW, PULSE/DIR
Frequency 12 MHz
Pulse counter 32-bit for each channel
Isolated Voltage 3 kVrms
Pulse Output
Channels 2
Mode CW/CCW, PULSE/DIR, A/B PHASE
Frequency 4 MHz
Pulse counter 32-bit for each channel
Isolated Voltage 3 kVrms
General
Bus Type PCI Express x1
Data Bus 32-bit
Card ID Yes (4-bit)
I/O Connector SCSI VHDCI 68-pin x 2
Dimensions (L x W x D)
Unit: mm
187 x 101 x 22

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Power Consumption 1 A @ +5 V (Max.)
Operating Temperature 0 ~ 60 °C
Storage Temperature -20 ~ 70 °C
Humidity 5 ~ 85% RH, Non-condensing

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1.4 Applications
•Signal Analysis
•FFT and Frequency Analysis
•Transient Analysis
•Temperature Monitor
•Vibration Analysis
•Energy Management
•Other Industrial and Laboratory Measurement and Control

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2Hardware Configuration
2.1 Board Layout
The following is an overview of the board layout for each of the PCIe-LM4 Series cards.
PCIe-LM4
CON1 The Connector for Analog input and Analog Output. Refer to Section 2.8 Pin
Assignments
CON2 The Connector for Motion control and Digital I/O. Refer to Section 2.8 Pin
Assignments

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2.2 Card ID Switch (SW1)
The PCIe-LM4 includes an onboard Card ID switch (SW1) that enables the board to be recognized via
software if two or more PCIe-8620/8622 boards are installed in the same computer. The default
Card ID is 0x0. For more details regarding the SW1 Card ID settings, refer to the table below.
NO
1 2 3 4
ID 0
ID 1
ID 2
ID 3
SW1
(Default Settings)
Card ID (Hex)
1
ID0
2
ID1
3
ID2
4
ID3
(*) 0x0
ON
ON
ON
ON
0x1
OFF
ON
ON
ON
0x2
ON
OFF
ON
ON
0x3
OFF
OFF
ON
ON
0x4
ON
ON
OFF
ON
0x5
OFF
ON
OFF
ON
0x6
ON
OFF
OFF
ON
0x7
OFF
OFF
OFF
ON
0x8
ON
ON
ON
OFF
0x9
OFF
ON
ON
OFF
0xA
ON
OFF
ON
OFF
0xB
OFF
OFF
ON
OFF
0xC
ON
ON
OFF
OFF
0xD
OFF
ON
OFF
OFF
0xE
ON
OFF
OFF
OFF
0xF
OFF
OFF
OFF
OFF
(*) Default Settings; OFF 1; ON 0

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2.3 System Block Diagram
The following is the block diagram for the PCIe-LM4:

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2.4 Analog Input
2.4.1 Analog Input Range
Input Range refers to the set of input voltages that an Analog Input channel can digitize with the
specified accuracy. The PGA amplifies or attenuates the AI signal depending on the input range. User
can individually program the input range of all channels on PCIe-LM4 board.
Input rage affects the resolution of the PCIe-LM4 for an AI channel Resolution refer to the voltage of
one ADC code. 24-bit ADC converts Analog Inputs into one of 16777216 codes – that is, one of
16777216 possible digital values. These values are spread fairly evenly across the input range.
Theory Input Range Nominal Resolution
(Max – Min)/16,777,216 -10 V to 10 V 1.192 μV
-5 V to 5 V 596 nV
-2.5 V to 2.5 V 298 nV
-1.25 V to 1.25 V 149 nV
-227 mV to 227 mV 27 nV

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2.4.2 Connecting Analog Input Signals
The PCIe-LM4 Series board can be used to measure differential type Analog Input signals for floating
signal source.
AI CH 0 HI
AI CH 0 LO
AI CH n HI
A.GND
AI CH n LO
A.GND
100 kΩ~ 10 MΩ
100 kΩ~ 10 MΩ
PCIe-LM4V
sFloating
Signal
Source
Floating
Signal
Source
V
s
2.4.3 Signal Shielding
Use a single-point connection to the frame ground, rather than the AGND or DGND pins.
Vin
PCIe-LM4/PCIe-LM4
A_GND
D_GND
Frame Ground

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2.4.4 Connecting Load cell inputs Signals
The PCIe-LM4 Series board can be used to measure Load cell transducer Input signals for floating
signal source in differential mode.
EXC+
Load cell
Transducer
SENSE+
VO-
PCIe-LM4
VO+
EXC-
EXC-
SENSE-
AIx+
AIx-
EXC+
2.4.5 Analog Input Data Acquisition Methods
The following is an overview of the five trigger modes:
Trigger Mode Description
Software
Trigger
No trigger signal is used
and all A/D operations
are initiated by software.
After the clock signal is generated, A/D data will be recorded and saved to the buffer or the FIFO.
Two clock sources are provided, a software command and a pacer clock.
The saved data can be transferred to the memory on the PC using either software polling transfer.

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2.5 Analog Output
2.5.1 Connection Analog Output Signals
The PCIe-LM4 board provides two DA output channels, AO0 and AO1, and the onboard -5 V (-10 V)
reference signal on the PCIe-LM4 may be used to generate a DA output range of 0 V to +5 V (+10 V).
AO0
AGND
PCIe-LM4
Channel0
Load

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2.6 Digital Input/Output
The DIO signals, DO<0..15> and DI<0..15> are referenced to DI.COM and EXT.GND. The figure shows
DI<0..15> configured for Digital Input and DO<0..15> configured for Digital Output.
Digital Input wiring diagram
Digital
Input/Counter
Readback as 1 Readback as 0
Sink
+10 ~ +30 VDC
OPEN or <4 VDC
3K
DI.COM
DIx
-+ To other
channels
3K
DI.COM
DIx
-+ To other
channels
Source
+10 ~ +30 VDC
OPEN or <4 VDC
3K
DI.COM
DIx
+-
To other
channels
3K
DI.COM
DIx
+- To other
channels
Figure 1: digital input wiring
Digital Output wiring diagram
Output
Type
ON State
Readback as 1
OFF State
Readback as 0
Driver
Relay
EXT.PWR
EXT.GND
DOx
+
-
EXT.PWR
EXT.GND
DOx
+
-
Resistance
Load
EXT.PWR
EXT.GND
DOx
+
-
+
-
EXT.PWR
EXT.GND
DOx
+
-
+
-
Figure 2: digital output wiring

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2.7 Motion Control
2.7.1 Connecting Pulse Output Signals
Figure 3: Internal pulse output circuit
•Differential type:

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Figure 4: Wiring for differential type pulse output
•Open collector TTL output
Figure 5: Open collector TTL output